I was checking this forum last few days, and read most topics. There was many questions like what's "something", what's "ABC" stands for, especially in Uber-Noob. Even in other posts, people asking about what's the C or CE keyway(keyhole) or what's control key. Sometimes i google it and finally find a half hour 'cuz google search mistakes and shows me the keyboard pictures. And i was thinking how about posting a topic about all slangs about lockpicking, but it's not about how to do handles myself, or how to open combo locks etc... English is not my mother's language, so feel free to edit. And don't forget to add something that you know xD

[I'm gonna update(edit) frequently for easy to read]

1. Lock manipulate or beating - Lock picking2. SPP - Single pin picking3. Driver pins(top pins) - Pins that stays top of shear line after spinning. 4. Key pins(bottom pins) - Pins that stays bottom of shear line after spinning. 5. Springs - To provide resistance to keep a pins in place. Stays top of driver pin 6. Pin chambler - Where pins are. [key pins + driver pins + springs]7. Plug - Where a key goes.8. Shell - main body of a lock9. Bow - A handle of key10. Short hook - first hook 11. Long hook - little longer 12. bogota - some kind of rake 13. BKE - Broken key extractor 14. Broken key extractor - Use, when you broke key in keyhole and stucks the key15. Vise - is a mechanical apparatus used to secure an object to allow work to be performed on it. Useful for put lock on it, and lock becomes impossible to move. Sometimes place key instead for impressioning.16. Impressioning - The process of duplicating or otherwise simulating the action of a proper key for the target lock. Impression can take many forms, some of which are not strictly classified as lockpicking.17. Shrink wrap(s) - Material for handle. You can do it with a candle or lighter in a short time.18. Hardware store - Sometimes known as DIY stores, sell a locks, picks, lock picking tools. Probably you can buy locks for pretty cheap than internet.19. Oversetting - When a key pin lifted too high from shear line. Start over, if it happens.20. Shear line - Is where the inner cylinder ends and the outer cylinder begins.21. Security pins - Other kind of pins. Not impossible, but more hard to pick and adds time to lock picking. Ex: Spool pins, Serrated pins, Mushroom pins, Hybrid pins.22. Key blank(Blank key), or blank - A key before any cuts have been made. 23. Plug - The part of the lock that you put the key into.24. Tubular lock - Circular keyway lock 25. Wafer tumbler - A type of lock that uses a set of flat wafers to prevent the lock from opening unless the correct key is inserted. 26. Shimming - A process by which a lock can be dis-assembled without use of an operating key. 27. ALCA - American Lock Collectors Association28. Sparrows/Petersons... - Online shops. But you can from dealers. Link for Sparrows. Link for ThinkPeterson29. Dimple lock - Is a pin-tumbler-based lock design that uses flat side of the key blade as a bitting area. This horizontally-oriented lock used mostly in Asian countries. Ex: DOM, Mul-T lock.30. Company names/A lock manufacturers - KABA, YALE, Mul-T Lock [updating...]31. Cut-away lock - Locks made for practice. You can see pins from outside of the lock while manipulating.32. MDC - Master Door Controller33. TI - Titalium34. DHL - Fast shipping service. Fast but a expensive. 35. SGDG - Sans Garantie du Gouvernement/Without guarantee of government36. SFIC - Small format interchangeable core37. DRGM - Deutsches Reichs Gebrauchs Muster38. ML - Masonic Lodge39. KM - Kanadian Mile40. SC - Schlage 41. KW - Kwikset42. CV - Curriculum Vitae43. AHID - Anti home invasion device44. LS - Long Shackle45. BS - Band saw blades46. TUPL - The ultimate practice lock47. Tension wrench - Is used to apply torque to the lock plug to keep pins from being pushed back down by springs after they are correctly set at the shear line. 48. Spool pin - A top pin with a portion of the center removed, resembling a spool or barbell shape. Triggers when the center of the spool is caught at the shear line. 49. Mushroom pin - A top or bottom pin with a beveled cut around their circumfrence, resembling a mushroom shape. Top pin mushroom designs are much more common, but companies like Mul-T-Lock use them for bottom pins, as well. 50. Serrated pin - A top or bottom pin with light serrations around the circumfrence of the pin. Triggers when a serration is caught at the shear line. 51. Hybrid pin - A combination of the previous three designs. For example, "spoorated" is a spool pin with serrations on the outer edges of the pin. 52. PTL - Pin tumbler lock53. Cam - Is an extension connected to the back of the plug which actuates the bolt mechanism to lock or unlock the lock.54. Cylinder - Is the outer piece of the lock that houses the upper pin chambers and the plug. Driver pins and springs are trapped in the cylinder's pin chambers when the correct key is used and plug rotated.55. Pick gun - Gun for picks similar to bump keys. Pick gun is a lockpicking tool used to rapidly open pin-tumbler based locks.56. Bump key - Is a covert entry technique used to quickly open pin-tumbler based locks.57. Tryout keys - A set of keys modified to different depth positions. Tryout keys take advantage of poor tolerances in locking components. While most locks represent themselves as having a large amount of theoretical key differs, some have very few due to poor tolerances.58. Comb Picks - A pin-tumbler pick designed to move all pin stacks out of their blocking position by pushing them into the cylinder chambers, allowing the plug to rotate freely.59. Decoding - The process of decoding the position of internal components either through manipulation of components, disassembly of the lock, or analysis of the key. Decoding can take many forms, most of which are not strictly classified as lockpicking.60. Binding - Is a fundamental principle of locks that prevents the lock from opening without the correct key. Binding is also used in lockpicking and impressioning to allow components to be manipulated individually. A tension tool is used to bind components and determine the order in which they should be picked, or, in the case of impressioning, the spots in which a key should be filed.61. Bypass - A bypass occurs when a lock is compromised without affecting the integrity of the lock cylinder. Generally, the bolt or actuator are targeted, though in some methods a knob or handle on the rear of a door is manipulated to allow entry.62. Bypass tools - Especially made tools for bypassing.63. X keys - Different shapes of keyways. Image included.

64. Diamond - Half diamond pick65. Half diamond pick - is included in nearly all kits and is mainly used for picking individual pins, but can also be used for raking and for wafer and disk locks. Pyramid like looking pick. 66. Torsion wrench - A tension wrench67. Hook pick - Is similar to the half-diamond pick, but has a hook-shaped tip rather than a half-diamond shape. The hook pick is sometimes referred to as a "feeler" or "finger" and is not used for raking. Long hook/Short hook 68. Ball pick, or half double ball - Is similar to the half-diamond pick, except the end of the pick has a Half or full circle shape. This pick is commonly used to open wafer locks. 69. Rake picks, or rake - It's not for pin by pin picking, just slide it there few times till end and it generally works for cheaper locks. Snake rake: W rake: City rake 70. Offest or, offset diamond - Basically, a hook with a half-diamond tip. See picture: 71. C rake or ¾ rake - Probably the most common of rake picks, this can be used as a short hook pick by using it “tip up” or raking by flipping it over and using the “bumps” in an in-out sawing motion. Different from city rake, i think. Don't confuse.72. Wave rake - Bogota 73. Worm rake - Almost same look like bogota. Very quick with lock without security pins.74. S rake - Has a more severe profile and is best used strictly as a rake. Most success will be found in pin-tumbler locks with a high-low-high or reverse bitting situation. 75. L rake - See: City rake 76. Snake rake - See: S rake 77. Top of the keyway tension - Pry-bar tensioner. Other side is a short end. 78. L rake, or full rake - Has a long section of the pick needle profiled. These may be random, or computer generated in some cases to offer a potentially better chance of success in raking.79. W rake - W or M looking rake. Usually has a blunt tip and severe and short profile, usually from rather high to rather low. 80. Full round - Perfect circle looking pick. Like a lollipop.81. Carrier - Bag for picking tools/kit82. EDC - Every day carry. For example: Knife, zippo.83. AS - Alarm systems.84. Side pins - Additional secondary security elements.85. TPT - Telescopic pin tumblers86. Combo lock(Combination lock) - Is a type of padlock in which a sequence of numbers or symbols is used to open the lock. 87. SFIC - Small Format Interchangeable Core.88. A2 - An increment of .0125 typically used in a small format interchangeable core (SFIC)89. A3 - An increment of .0180 typically used in a small format interchangeable core (SFIC) 90. A4 - An increment of .0210 typically used in a small format interchangeable core (SFIC) 91. Magic number - For an SFIC, a value from which subtracting the control cut depth will result in the correct toppin size, or, subtracting the top pin size will result in the control cut depth.92. Access control - Is a security technique that can be used to regulate who or what can view or use resources in a computing environment.93. ADA - Americans with Disabilities Act94. AED - Anti-explosive device 95. AFTE - Association of Firearm and Toolmark Examiners 96. AHC - Architectural Hardware Consultant (as certified by DHI) 97. DHI - Door and Hardware Institute 98. Alarm system - A system of electrical and/or electronic components which detect and report dangers, such as fire or intrusion99. All-section key blank - The key section which enters all keyways of a multiplex key system 100. Annunciator - An audible and/or visual signaling device101. ANSI - American National Standards Institute 102. Anti-friction - Pertaining to a feature which, upon contact with the strike, allows smoother operation of alatch bolt 103. Anti-passback - Of or pertaining to an access control system feature designed prevent consecutive use of agiven credential to allow entry by more than one person at a time 104. Anti-punch collar - A two part system installed on a spindle shaft and safe body to prevent the spindle shaft frombeing punched into the lock case 105. Anti-rap - Specifically designed to preclude bypass via attack based on sharp, repetitive blows to themechanism106. Anti slip positioned - Of or pertaining to the orientation of a cam on a profile cylinder which requires rotationbefore it may be removed from the lock case 107. Anti-wrench reinforcement spring - A lock cylinder spring designed to protect the inner and outer halves of a profile cylinder frombeing forcibly separated as a means of brute force entry 108. Arbor - The threaded end of a safe door handle 109. Arm (of a closer) - Door closer linkage which connects the closer to the frame or door, depending on the mountingstyle110. ASIS - American Society for Industrial Security111. Astragal - A molding attached to the face of the active leaf of a pair of doors and overlapping the inactiveleaf112. ATT - Attendant's key. ATT is a selective master key used in a hospital keying system .113. Auxiliary lock - Any lock installed in addition to the primary lockset 114. auxiliary spring - A secondary spring used to support the lever handles of a lockset 115. Auxiliary spring rose - Oversized trim that interlocks with a lock chassis and external lever as a means to mount anauxiliary spring116. B label - A classification by Underwriters Laboratories for doors with 1 1/2 hour rated fire protection117. C label - A classification by Underwriters Laboratories for doors with 3/4 hour rated fire protection 118. Labeled door - A door which has a fire protection certification by one of the recognized underwriting agencies119. Labeled exit - A labeled door equipped with labeled hardware that can be used for building egress 120. back plate - A thin piece of metal, usually with a concave portion, used with machine screws to fastencertain types of cylinders to a door 121. backcheck - The resistance provided by a door closer as a door is opened 122. Backset - The distance between the center of a cross-bore and the bolt edge of a door or drawer 123. Balance - To dial a combination 1 number high and 1 number low to verify a correct combination setting124. Ball bearing:124.1. A metal ball used in the pin stack to accomplish some types of hotel or construction keying124.2. A ball, usually made of steel, used by some lock manufacturers as the bottom element in thepin stack in one or more pin chambers124.3. Any metal ball used as a tumbler's primary component124.4. Used as a means of repairing a drilled hole in a safe when welded in place125. Ball locking - A method of locking a padlock shackle into its case using ball bearing as the bolt.126. BBC - Basic Building Code 127. BHMA - Builders Hardware Manufacturers Association 128. BMK - Block master key129. BOCA - Building Officials and Code Administration International (formerly Basic Building Code) 130. CBOK - Construction breakout key131. CCW - Counter clock-wise132. CIL - Certified Institutional Locksmith as awarded by ILA133. ILA - Institutional Locksmiths Association134. CJIL - Certified Journeyman Institutional Locksmith as awarded by ILA135. CJL - Certified Journeyman Locksmith as awarded by the Professional LocksmithAssociation of Alberta 136. CJS - Certified Journeyman Safe cracker as awarded by NSO137. CK - Control key / Change key (not same thing, just meant to acronym.)138. CMIL - Certified Master Institutional Locksmith as awarded by ILA 139. CMK - Construction master key 140. CML - Certified Master Locksmith as awarded by ALOA141. CMS - Certified Master Safe cracker as awarded by NSO 142. CMST - Certified Master Safe Technician as awarded by SAVTA 143. CO - Certificate of occupancy144. CPL - Certified Professional Locksmith as awarded by ALOA 145. CPP - Certified Protection Professional as awarded by ASIS 146. CPS- Certified Professional Safe Technician as awarded by SAVTA 147. CRL - Certified Registered Locksmith as awarded by ALOA 148. CSI - Construction Specifiers Institute149. CW - Clockwise150. TOK - Top of keyway. This refer to WHERE you place your tension wrench. (same side as the pins)151. BOK - Bottom of keyway. This refer to WHERE you place your tension wrench. (opposite the pins)152. Rocking - Raking technique. Go to YT.153. Scrubbing - Raking technique. Go to YT.154. YT - Youtube (also utube)155. DHI - Door and Hardware Institute 156. EAC - Electronic access control157. EIA - Electronics Industry Association 158. EMK - Emergency master key 159. ENG - Engineer's key160. Engineer's key - A selective master key which is used by maintenance personnel to operate many locks underdifferent master keys in a system of three or more levels of keying 161. FAR - False acceptance rate 162. FRR - False rejection rate 163. GGGMK (GGMK) - Great great grand master key 164. GM (GMK) - Grand master key. The highest level master key in a system, sometimes abbreviated as GM.165. GSA - General Services Administration (US Government) 166. GSA container - Any container approved by the General Services Administration for storage of classifiedmaterial167. HGM - Horizontal group master key 168. HiCo - High coercivity (Form of magnetic encoding measuring in the range of 2400 to 4000 Oe whichis resistant to accidental erasure)169. HKP - Housekeeper's key170. IC - Interchangeable core171. Core - A complete unit, often with a "figure eight" shape, which usually consists of the plug, shell,tumblers, springs, plug retainer and spring cover(s). It is primarily used in removable andinterchangeable core cylinders and locks. 172. ILA - Institutional Locksmiths Association173. ILCP - Institutional Locksmith Certification Program; a locksmith certification programadministered by ILA 174. IP - Internet protocol175. IR - Infrared176. IRD - Internal relocking device177. K - Symbol for "keys" used after a numerical designation of the quantity of the keys requestedto be supplied with the cylinders; e.g., lk, 2k, 3k, etc. it is usually found in hardware/keyingschedules. 178. KA1, KA2, etc - Symbol which indicates that all cylinders so designated are or are to be operated by the samekey(s). The numerical designation indicates the keyed alike group or set. 179. KBA - Key bitting array 180. KD - Key'ed different181. KIK - Key in the knob182. KIL - Key in lever183. KR - Keyed random, or key retaining184. KWY - Keyway185. LFIC - Large Format Interchangeable Core186. LH - Left hand187. LHR - Left hand reverse bevel188. LHVD - Left hand vertical down189. LHVU - Left hand vertical up190. LOBC - 1. locked on by combination, 2. (sic) locked on back cover 191. LoCo - Low coercivity ( a low energy form of magnetic encoding measuring 300 Oe which is not very resistant toaccidental erasure )192. Clamp - I think, it's a vise. Can be seen on youtube comment section.193. LP - Lock pick | Lock picking194. DND - Do not duplicate195. T-pins - Pin that looks like P letter. You can see on bosnian's first NL challenge.196. ESL - Electronic safe lock197. Electronic lock - Is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.198. TMK - Top master key. The highest level master key in a system.199. Bitting - Used in various ways to refer to the cuts on a key.200. NRP- Non removable pins. (hinges)201. TNLGTMOR, or simply NLGM - The National Locksmith Guide To Manipulation. It's free book, not for sale. Created by pro locksmith for pro locksmiths.202. MACS - Maximum adjacent cut specification203. MCCS - Maximum Compound Cut Specification 204. MK - Master key 205. MOCS - Maximum opposing cut specification 206. MP - Manipulation proof207. MR - Manipulation resistant 208. MS - Maximum Security. A trademark of the Adams Rite Manufacturing Co. 209. NCK - No change key210. NFS - Non-fail safe211. NKR - Non key retaining 212. NLSA - National Locksmith Suppliers Association 213. NMK - A notation used to indicate "not master keyed" and is suffixed in parentheses to a regularkeying symbol. It indicates that the cylinder is not to be operated by the master key(s) specifiedin the regular keying symbol; e.g., AB6(NMK). 214. NRK - Non-removable key 215. NRP - Non-removable pin 216. NSO - National Safemans Organization 217. NSP - National Service Provider 218. NUR - Nurse's key ( a selective master key used in a hospital keying system )219. O.b. - Operated by220. Oe -Oersted (a unit of magnetic field strength which is commonly used in the magnetic recording industry)221. PIN - Personal identification number 222. PIR - Passive infra-red223. PRP - "Proficiency Registration Program"; a locksmith certification program administered by ALOA 224. PKP - Push key padlock (padlock whose shackle is released by full insertion of the key into the lock)225. RF(ID) - Radio Frequency (identification)226. RH - Right-hand 227. RHR - Right hand reverse bevel228. RHVD(RHVU) - Right hand vertical down (up)229. RL - Registered locksmith230. RLD - Relocking device 231. RLT - Relock trigger 232. RM - Row master key233. RST - The title "Registered Safe Technician" as awarded by NSO. RS-485 is an Electronics Industry Association (EIA) standard for serial multipoint communications commonly used in online access control systems for distances up to 4000 feet.234. TOOOL - The Open Organisation of Lockpickers235. S/A - Sub-assembled236. SAVTA - Safe and Vault Technicians Association 237. SBCCI - Southern Building Code Congress International238. SDB - Safe deposit box239. SFIC - Small Format Interchangeable Core 240. SHDA - Security Hardware Distributors Association (formerly NLSA)241. SKCS - standard key coding system 242. SKD - symbol for "single keyed", normally followed by a numerical designation in the standardkey coding system; e.g., SKD1, SKD2, etc. It indicates that a cylinder or lock is not masterkeyed but is part of the keying system 243. SMK - sub-master key 244. SMNA - Safe Manufacturers' National Association 245. SOP - Sequence of Progression 246. STPRP - "Safe Technicians Proficiency Registration Program"; the certification program of SAVTAas administered by ALOA 247. T-b - tip-to-bow, and it's a specification that a bitting combination is recorded starting at the tip and proceeding to the bow.248. T-handle - T-shaped handle assembly which may be lockable 249. T-strike - a strike whose lip spans the middle portion (but not the full height) of the strike 250. TCP - transmission control protocol 251. TCP/IP - the system networks use to communicate with one another 252. TL-15 - a U.L. rating given to a container whose door has been tested against forcible entry, withcommon hand tools, for a period of 15 man minutes 253. TL-30 - rating given to a container whose door has been tested against forcible entry, withcommon hand tools and/or abrasive cutting wheels and power saws, for a period of 30 manminutes254. TMK - top master key 255. TRTL-15x6 - a U.L. rating given to a container when it has been tested against forcible entry, on all sixsides, with common hand tools and/or abrasive cutting wheels, power saws, and oxy-fuel gascutting or welding torch for a period of 15 man minutes256. TRTL-30 - a U.L. rating given to a container where the door has been tested against forcible entry withcommon hand tools and/or abrasive cutting wheels, power saws, and oxy-fuel gas cutting orwelding torch for a period of 30 man minutes257. TRTL-30x6 - ??x6 means not only front, all six side of safe box.258. TRTL-60 - a U.L. rating given to a container where the door has been tested against forcible entry withcommon hand tools and/or abrasive cutting wheels, power saws, and oxy-fuel gas cutting orwelding torch for a period of 60 man minutes 259. TTL - 1. transistor transistor logic, 2. time to live 260. TXTL-60 - A U.L. rating given to a container where the door has been tested against forcible entry withcommon hand tools and/or abrasive cutting wheels, power saws, and oxy-fuel gas cutting orwelding torch and may further include nitroglycerin or other high explosives for a period of 60 man minutes. The total quantity of explosives employed may not exceed 8 ounces. Not morethan 4 ounces is to be used in a single charge. 261. type 1 - a UL rating given to an electronic combination lock able to withstand 20 man-hours of expertmanipulation as well as other specifications as listed in UL 2058 262. type 1F - a UL rating given to an electronic combination lock able to withstand 20 man-hours of expertmanipulation as well as other specifications as listed in UL 2058. The lock also meets U.S.Federal Specifications FF-L-2740. 263. type 2 - a UL rating given to an electronic combination lock able to withstand specifications as listedin UL 2058 264. UL - Underwriters Laboratories 265. UL listed - listed in a directory as having passed specific Underwriters Laboratories testing 266. USB key - a hardware key connected to a USB port 267. VATS(Vehicle Anti-Theft System) interrogator - a device which determines the resistor value required to complete the ignition circuit. It alsoreads the value of the resistor in a VATS key. 268. VD - Vertical down. 269. Vertical down - of or pertaining to a mounting orientation of a safe or vault lock such that the bolt projectsdownward270. VGM - vertical group master key 271. VKC - visual key control 272. VU - vertical up 273. X - symbol used in hardware schedules to indicate a cross-keyed condition for a particularcylinder; e.g., XAA2, XlX (but not AX7) 274. Z-wire - 1. a wire bypass tool with two opposing right angle bends, for retracting a spring latch, 2. awire tension wrench for the control lug in certain IC padlocks 275. 160 prep - A standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/8" backset, and a1" edge-bore with a mortise 1" wide and 2-1/4" high 276. 161 prep - A standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/4" backset, and a1" edge-bore with a mortise 1-1/8" wide and 2-1/4" high 277. 2 in 1 pick - A tool designed to open lever locks where bolt pressure and lever manipulation are appliedsimultaneously278. Batarang - See: S rake279. Action - The arrangements of live or latch bolts and their accessories in a lock or latch, and how they function.280. Alike change - More than one lock or latch which can be operated by the same key.281. All to pass - Often referred to as "locks to pass" i.e. a number of locks which can be passed or keyed alike (opened by the same key).282. Anti-thrust bolt - A spring bolt, for a night latch particularly, which cannot be pushed back when it has shot out and fastened a door.283. Anti-thrust plate - An overlapping metal plate fitted to outward opening doors so as to prevent access to lock bolts.284. Automatic deadlatch - A deadlatch, the main bolt of which is automatically locked (or deadlocked) when the door is closed.285. Barium ferrite card - An access control system credential consisting of magnetized ferrite embedded in a plastic cardwith polarity and location being important features 286. Barrel bolt - A surface mounted slide bolt which has a cylindrical shape 287. Barrel key - A type of bit key with a hole drilled into the shank from the tip 288. Barrier free - Having to do with the absence of restrictions to access by the handicapped 289. Barron, Robert - The Englishman credited with the invention of the double-acting lever tumbler in 1778 290. Basic Building Code - Former name for BOCA National Building Code 291. Battery eliminator - An electric device designed to provide energy to equipment normally requiring batteries foroperation 292. Bell box - The protective enclosure for a bell or other alarm sounding device 293. Bell type key - A key whose cuts are in the form of wavy grooves milled into the flat sides of the key blade.The grooves usually run the entire length of the blade. 294. Bevel (of a door) - The pitch on the leading edge of a door which allows clearance for closing 295. Bevel (of a lock) - The pitch of the face designed to match the bevel of a door. Some locks have an adjustable bevel. 296. Bezel - A threaded collar commonly used to secure certain cylinder or lock assemblies 297. Bible - That portion of the cylinder shell which normally houses the pin chambers, especially those ofa key-in-knob cylinder or certain rim cylinders 298. Bicentric cylinder - A cylinder which has two independent plugs, usually with different keyways. Both plugs are operable from the same face of the cylinder. It is designed for use in extensive master key systems. 299. Bicycle padlock - A padlock with sufficient shackle clearance to secure a bicycle 300. Bi-directional cylinder - A cylinder which may be operated in a clockwise and counterclockwise direction by a single key 301. Bi-fold door - A door with two or more sets of hinges, the additional set(s) allows the door to have an accordion action when opened 302. Bilevel capable - Typically a key that can operate two compatible mechanisms which have different security features 303. Binary cut key - A key whose combination only allows for two possibilities in each bitting position: cut/no cut 304. Binary type cylinder, or lock - A cylinder or lock whose combination only allows for two bitting possibilities in each bitting position305. Biometric - Of or pertaining to a lock with a hybrid mechanism, part of the mechanism identifies a physical attribute such as finger print, voice print, etc. while another part is a mechanical mechanism 306. Bit - 1. the part of the key which serves as the blade, usually for use in a warded or lever tumbler lock 2. v. to cut a key 307. Bit height - A measurement from the post of a bit key outward to the end of the bit 308. Bit key - A key with one or more projecting bits 309. Bit thickness - A measurement of the bit from one side to the other side 310. Bit width - As inserted into a lock, a measurement from the leading edge to the trailing edge of a bit311. Bitting - 1. The number(s) which represent(s) the dimensions of the key 2. The actual cut(s) or, combination of a key 312. Bitting depth - The depth of a cut which is made into the blade of a key313. Bitting list - A listing of all the key combinations used within a system. The combinations are usually arranged in order of the blind code, direct code, and/or key symbol.314. Bitting orientation - The specification of how a written combination is to be applied to bitting positions of a key (tip-to-bow, etc.)315. Bitting position - The location of a key cut316. Blade - the portion of a key which may contain the cuts and/or millings317. Blind code - A designation, unrelated to the bitting, assigned to a particular key combination for future reference when additional keys or cylinders may be needed 318. Block master key - The one pin master key for all combinations listed as a block in the standard progression format 3. Time Delay – Used to limit the frequency of opening and to act as a theft deterrent. The delay can typically be set between 1 and 99 minutes.3. Time Delay Override/Armored Car Override – a specific code is set during the lock initialization that allows the lock to be opened by a forced override during a time delay.3. Opening Windows – Similar to a time delay, setting opening windows takes the control of opening a step further. Any attempted opening outside of the pre-set time frames are blocked and ignored by the lock. Time frames are customizable, some common utilizations include minutes or seconds following a time delay, or a specific time of day.3. Wrong Try Penalty – Also referred to as “penalty modes” this feature is available in most electronic locks to prevent an individual from running through various combinations quickly. Following the entry of a number of incorrect codes (the number of incorrect tries can be customized), the lock enters “penalty” or “lock out” mode. Depending on user settings and model, the lock may reset after a set time following the lock out and allow the same number of incorrect code entries, or may require the correct code be entered the first try to prevent re-entry of lockout mode.3. Dual Custody – This feature prevents a single user from owner the container, typically two entry codes are required for successful opening. Typically given to two separate individuals, dual codes assist in deterring internal theft. The credentials aren’t restricted to multiple codes, they could also include utilization of an electronic lock and a key lock, two separate locks or another method of controlling access.3. Audits – Most electronic lock manufacturers offer products that allow audit trails to be pulled by authorized individuals with data reports including the number of times the safe was opened, the time of these openings, and the code used for entry. Loss Prevention departments often use these audit trails in internal theft investigations or determining extraction times.3. Duress Mode – An operating code is entered along with a number or series of number and through the location’s security system or burglar alarm, alerts law enforcement of a robbery in progress. This feature only works when integrated with the alarm system; upon entry of the duress code, the lock is released and the container opened.3. Ability to Integrate with a Facility’s Access Control System – Allows the ability to interface with the location’s existing access control and alarm system. This feature allows access to audit data in real time, increasing the visibility of who is accessing the safe. Many times this feature will operate in conjunction with the camera in the same room or office as the safe.

Like any profession or sport, Lock Smithing and picking have their own jargon to describe things unique to them.

Part of the fun (for me) is learning the "new" language.

I still have to look up words and "TLAs" (Three Letter Acronyms).

If you don't know what a word or acronyms is don't hesitate to ask. People here will be only too happy to explain and there is no shame in not knowing something ---- that's what it's all about ---- learning.

I'm sure that your post will help out an lot of beginners that have been too embarrassed to ask.

A couple to add...TMK - Top Master Key - The highest level master key in a systemGMK - Grand Master Key - The highest level master key in a system, sometimes abbreviated as GMBitting - Used in various ways to refer to the cuts on a key.

I also have a small gripe... You listed change key and control key as the same thing, though that's not always/really the case. Sometimes people refer to the core key/control key as the change key, but that's not correct to my knowledge. Change key refers to the lowest level keys in a master system, keys that are not masters/sub-masters. You could say they only open one lock in the system, but that may confuse people because it will open any other locks that are pinned the same as well. You can check out this Wikipedia article for reference: https://en.wikipedia.org/wiki/Change_key

That said, good work! This will probably come in handy for a lot of people.